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  2. 30 Scam Phone Numbers To Block and Area Codes To Avoid - AOL

    www.aol.com/19-dangerous-scam-phone-numbers...

    Here are examples of three of the most common scams out there today and how to block these spam calls. 1. One-Ring Scams. ... 888 numbers indicate it is a toll-free call. Calls made to toll-free ...

  3. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    The RespOrg is not the carrier. A Canadian carrier could be used for Canadian calls and a U.S. carrier for American calls; a user with many inbound local voice over IP numbers in multiple cities could convert toll-free calls on one main toll-free number to local calls in each city where it has a point of presence. Percentage Allocation routing

  4. RespOrg - Wikipedia

    en.wikipedia.org/wiki/RespOrg

    A call could be routed to one of multiple locations based on the call origin, load balancing between multiple call centers, times, or days. While this data was originally maintained by telephone companies, the breakup of the Bell System in the 1980s and the introduction of toll-free number portability in 1993 required an independent operator to ...

  5. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    Until the introduction of InWATS toll-free service by the Bell System on May 2, 1967 and the Linkline (later "Freefone") 0800 services by British Telecom on 12 November 1985, manually ringing the operator was the standard means to place a toll-free call. More than a few established manual "Freephone" or "Zenith" numbers remained in use for many ...

  6. Wide Area Telephone Service - Wikipedia

    en.wikipedia.org/wiki/Wide_Area_Telephone_Service

    With "inward WATS", introduced for interstate calls by the American Telephone and Telegraph Company (AT&T) in 1967, subscribers were issued a toll-free telephone number in a designated toll-free area code. Unlike a standard collect call or a call to a Zenith number, 1‑800 normally may be dialed directly with no live operator. Callers within a ...

  7. Intercept message - Wikipedia

    en.wikipedia.org/wiki/Intercept_message

    Please check the number and dial again, or call your operator to help you. Most of these messages often include the phrase "Your call cannot be completed as dialed." Sometimes a message would say to first dial a 1 or a 0 (the toll prefix for a trunk call) plus the area code of the called number. A message may also be played when 0 or 1 followed ...

  8. Directory assistance - Wikipedia

    en.wikipedia.org/wiki/Directory_assistance

    Toll-free directory assistance was provided by telecommunication providers, namely AT&T and Verizon, as mandated by the Federal Communications Commission. Companies requested to have their toll-free number listed, and paid the providers each time their phone number was released to a toll-free directory-assistance caller.

  9. Dialed Number Identification Service - Wikipedia

    en.wikipedia.org/wiki/Dialed_Number...

    For example, a company may have a different toll-free telephone number for each product line it sells, or for multilingual customer support. If a call center is handling calls for multiple product lines, the corporate telephone system that receives the call analyzes the DNIS signaling and may play an appropriate recorded greeting.